Abstract:
:This paper aims at analysing the synthesis of flavonoids, their import and export in plant cell compartments, as well as their involvement in the response to stress, with particular reference to grapevine (Vitis vinifera L.). A multidrug and toxic compound extrusion (MATE) as well as ABC transporters have been demonstrated in the tonoplast of grape berry, where they perform a flavonoid transport. The involvement of a glutathione S-transferase (GST) gene has also been inferred. Recently, a putative flavonoid carrier, similar to mammalian bilitranslocase (BTL), has been identified in both grape berry skin and pulp. In skin the pattern of BTL expression increases from véraison to harvest, while in the pulp its expression reaches the maximum at the early ripening stage. Moreover, the presence of BTL in vascular bundles suggests its participation in long distance transport of flavonoids. In addition, the presence of a vesicular trafficking in plants responsible for flavonoid transport is discussed. Finally, the involvement of flavonoids in the response to stress is described.
journal_name
Int J Mol Scijournal_title
International journal of molecular sciencesauthors
Petrussa E,Braidot E,Zancani M,Peresson C,Bertolini A,Patui S,Vianello Adoi
10.3390/ijms140714950subject
Has Abstractpub_date
2013-07-17 00:00:00pages
14950-73issue
7issn
1422-0067pii
ijms140714950journal_volume
14pub_type
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